/*
 * Copyright (c) 2006, 2022, webrx.cn All rights reserved.
 *
 */
package cn.webrx;

/**
 * <p>Project: jse2204 - Ex2
 * <p>Powered by webrx On 2022-09-16 16:59:10
 *
 * @author webrx [webrx@126.com]
 * @version 1.0
 * @since 17
 */
public class Ex2 {
    public static void main(String[] args) {
        StringBuilder s = new StringBuilder("hello");

        String s1 = s.reverse().toString();
        System.out.println(s1);
        String s2 = s1.toUpperCase();
        System.out.println(s2);

        System.out.println(s1);


        System.out.println(s);
    }
}
